[reactos] 01/01: [NTUSER] Set ERROR_INVALID_WINDOW_HANDLE when PostMessage failed (#3059)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=81f28d454a3f7f094065b4...

commit 81f28d454a3f7f094065b42509ef51b899ba8801
Author:     Katayama Hirofumi MZ [e-mail]
AuthorDate: Tue Aug 18 05:32:44 2020 +0900
Commit:     GitHub [e-mail]
CommitDate: Tue Aug 18 05:32:44 2020 +0900

[NTUSER] Set ERROR_INVALID_WINDOW_HANDLE when PostMessage failed (#3059)

Set the last error code ERROR_INVALID_WINDOW_HANDLE when user32!PostMessage failed with destroyed window.
    CORE-12124
---
 win32ss/user/ntuser/message.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/win32ss/user/ntuser/message.c b/win32ss/user/ntuser/message.c
index 79d68a184ea..ae0c0733ebe 100644
--- a/win32ss/user/ntuser/message.c
+++ b/win32ss/user/ntuser/message.c
@@ -1423,7 +1423,7 @@ UserPostMessage( HWND Wnd,
         if ( Window->state & WNDS_DESTROYED )
         {
             ERR("Attempted to post message to window %p that is being destroyed!\n", Wnd);
-            /* FIXME: Last error code? */
+            EngSetLastError(ERROR_INVALID_WINDOW_HANDLE);
             return FALSE;
         }